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ECLI

Contact ECLI at:

(516) 227-3254

(516) 227-ECLI

Monday – Friday: 7:00am – 4:00pm
Hours may vary due to COVID 19
Please contact us at 516-227-3254 if you have
any questions about your appointment time.

Click here for Coronavirus FAQs
  • About ECLI
  • Our services & treatments
    • Colonoscopy
    • Upper endoscopy
    • Flexible sigmoidoscopy
    • Anesthesia
    • Pathology
  • Our physicians
  • Events
  • Patient forms
  • Pre-/post-procedure guidelines
  • Patient education
  • Celiac Center of Long Island – CCLI
  • No Surprise Billing Act
  • Insurance & billing
  • Contact & directions
  • Careers
  • Blog

<< view all ECLI physicians

Zachary Marwil, MD

Managing Director

Gastroenterology

Education:  MD – St. George’s University School of Medicine

Residency:  Internal Medicine – SUNY Downstate Medical Center

Chief Residency: Internal Medicine – SUNY Downstate Medical Center

Fellowship:  Gastroenterology – SUNY Downstate Medical Center

Board Certification:  Gastroenterology-American Board of Internal Medicine/Gastroenterology; Internal Medicine-American Board of Internal Medicine

3019 Merrick Road, Wantagh, NY 11793, (516) 785-8075

711 Stewart Avenue, Garden City, New York 11530
Phone: (516) 227-3254, (516) 227-ECLI
Fax: (516) 998-4078

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Licensed by:
New York State Dept of Health

Accredited by:
Accreditation Association for Ambulatory Health Care, Inc. (AAAHC)

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  • About ECLI
  • Our services & treatments
    • Colonoscopy
    • Upper endoscopy
    • Flexible sigmoidoscopy
    • Anesthesia
    • Pathology
  • Our physicians
  • Events
  • Patient forms
  • Pre-/post-procedure guidelines
  • Patient education
  • Celiac Center of Long Island – CCLI
  • No Surprise Billing Act
  • Insurance & billing
  • Contact & directions
  • Careers
  • Blog